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An update on my last post, which will hopefully clarify some of the details, using small tubes over each plate in a Tero cell to separate the 2 gasses.

I use the same method of output tubes for my own fully flooded Tero type cells, the only addition is the membranes between 2 thinner neoprene gaskets to separate the gas and 2 recirculation reservoirs.

The tubes are cut to slot over the plates and on my big cells they are silver soldered in place. Goop should work for a trial run tho.

Using 2 separate reservoirs for the gases and any electrolyte that is circulated with the gas, with the returns fed back into each end of the Tero, means the liquid only has to pass through 2 membranes on each side of the cell.

The plates are all identical, just mirrored so that the electric tags, feed holes and output tubes do not align. This gives more gasket depth for compression around the output tubes.

It is essential to keep to an even number of plates (odd # of cells) so that the intermediate plates work as either negative or positive, not bipolar. 5 cells between 6 plates should be optimum due to the 4mm+ spacing. 7 cells would need very strong electrolyte.

This design is still theoretical, but at worst it still gives a decent producing HHO system. The only extra cost is for the membranes. I plan to build one for my cavalier to replace the plastic pipe arrangement I’m using ATM to see if Hydrogen alone will give a better result.

A further modification could easily be made if the neutral plates act as bipolars. Replace permeable membranes 2 & 4 with thin rigid plastic with a feed hole for liquid at the bottom like the S/S plates. The unit will then operate as 3 independent cells and can be wired in series using the external tags. Easy to dismantle and add more plates and membranes to drop the voltage per cell, or build 2 complete units and wire them in series.